<!-- 
if (document.images) 
{  
img1on = new Image ;img1off = new Image ;  
img2on = new Image ;img2off = new Image;  
img3on = new Image ;img3off = new Image;  
img4on = new Image ;img4off = new Image;  
img5on = new Image ;img5off = new Image;  
img6on = new Image ;img6off = new Image;  
img7on = new Image ;img7off = new Image;  
img8on = new Image ;img8off = new Image;  

img1on.src = "imgs/btn01-company2.gif";img1off.src = "imgs/btn01-company.gif"; 
img2on.src = "imgs/btn02-contacts2.gif";img2off.src = "imgs/btn02-contacts.gif"; 
img3on.src = "imgs/btn03-drill2.gif";img3off.src = "imgs/btn03-drill.gif"; 
img4on.src = "imgs/btn04-watersuply2.gif";img4off.src = "imgs/btn04-watersuply.gif"; 
img5on.src = "imgs/btn05-waterclear2.gif";img5off.src = "imgs/btn05-waterclear.gif"; 
img6on.src = "imgs/btn06-otoplenie2.gif";img6off.src = "imgs/btn06-otoplenie.gif"; 
img7on.src = "imgs/btn07-kanal2.gif";img7off.src = "imgs/btn07-kanal.gif"; 
img8on.src = "imgs/btn08-gallery2.gif";img8off.src = "imgs/btn08-gallery.gif"; 
} 
function img_act(imgName) { 
if (document.images) 
{ imgOn = eval (imgName + "on.src"); 
document [imgName].src = imgOn; } } 
function img_inact(imgName) { 
if (document.images) 
{ imgOff = eval(imgName + "off.src"); 
document [imgName].src = imgOff; } } 
//-->